breast (brest)

Glandular organ located on the chest. The breast is made up of connective tissue, fat, and breast tissue that contains the glands that can make milk. Also called mammary gland.

Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)

cancer (KAN-ser)

A term for diseases in which abnormal cells divide without control and can invade nearby tissues. Cancer cells can also spread to other parts of the body through the blood and lymph systems. There are several main types of cancer. Carcinoma is a cancer that begins in the skin or in tissues that line or cover internal organs. Sarcoma is a cancer that begins in bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue. Leukemia is a cancer that starts in blood-forming tissue such as the bone marrow, and causes large numbers of abnormal blood cells to be produced and enter the blood. Lymphoma and multiple myeloma are cancers that begin in the cells of the immune system. Central nervous system cancers are cancers that begin in the tissues of the brain and spinal cord. Also called malignancy.

Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)

immunology (IH-myoo-NAH-loh-jee)

The study of the body's immune system.

Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)

leukemia (loo-KEE-mee-uh)

Cancer that starts in blood-forming tissue such as the bone marrow and causes large numbers of blood cells to be produced and enter the bloodstream.

Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)

oncology (on-KAH-loh-jee)

The study of cancer.

Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)

pharmacology (FAR-muh-KAH-loh-jee)

The study of the origin, chemistry, and uses of drugs and their effects on the body.

Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)